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NXP Semiconductors PTN3366BSMP
- Part No.:
- PTN3366BSMP
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
PTN3366BSMP.pdf
- Description:
- IC VIDEO LEVEL SHIFTER 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,946
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Product details
Overview
PTN3366BSMP from NXP Semiconductors is a low-power, 4-lane HDMI/DVI level shifter IC that converts AC-coupled low-swing differential inputs (e.g., from DisplayPort PHYs) to DC-coupled TMDS outputs compliant with HDMI v1.4b and DVI v1.0, supporting up to 3 Gbit/s per lane for 4K×2K and 3D video transport. It integrates active DDC buffering with I²C-level shifting (3.3 V ↔ 5 V), HPD voltage translation (5 V sink → 3.3 V source), and programmable equalization - deployed in PC graphics cards and docking stations.
For engineers reviewing the PTN3366BSMP datasheet, PTN3366BSMP pinout, PTN3366BSMP application, or PTN3366BSMP equivalent, key selection considerations include its 32-terminal HVQFN32 package, 3.3 V single-supply operation, back-current-safe sink-side terminals, ultra-low standby current (25 µA), and transparent (non-retiming) signal path with no firmware or configuration required.
Technical Context
The PTN3366BSMP implements four independent high-speed differential lanes with self-biasing 50 Ω AC-coupled inputs compliant with DisplayPort 1.2a and PCIe 1.1, and open-drain current-steering TMDS outputs terminated into 50 Ω at 3.3 V. Each lane supports programmable receive equalization (0 dB to 6 dB) via EQ0/EQ1 pins and squelch functionality below VRX_DIFFp-p = 0.15 V.
Its DDC channel uses active I²C-bus buffer architecture with rise-time acceleration on sink-side SCL_SINK/SDA_SINK (supporting ≤1400 pF bus load), while HPD translation includes an integrated 200 kΩ pull-down on HPD_SINK to guarantee LOW when no display is connected - all operating without retiming, latching, or internal state machines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max data rate | 3 Gbit/s per lane (supports 4K×2K @ 300 MHz TMDS clock) |
| Supply voltage | 3.3 V ±10 % - single rail powers all functions including DDC and HPD logic |
| Power consumption | 22 mA typical active mode; 25 µA standby; 10 µA ultra-low-power mode |
| Differential input impedance | 50 Ω ±10 % - integrated termination enables direct AC-coupled connection from DP sources |
| DDC I²C speed | Up to 400 kHz - meets Fast-mode Plus timing with rise-time acceleration on sink side |
| ESD resilience | 8 kV HBM, 1 kV CDM - qualified for robust board-level integration in consumer electronics |
| Operating temperature | −40 °C to +105 °C - suitable for graphics card and embedded docking station environments |
Pinout & Package
PTN3366BSMP is housed in a 5 mm × 5 mm × 0.85 mm HVQFN32 package with exposed thermal pad (connected to GND). The center pad must be soldered to PCB ground with thermal vias for reliable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN_D1+ to IN_D4− (pins 25–32) | Self-biasing differential inputs | AC-coupled low-swing inputs compatible with DP 1.2a/PCIe 1.1; require external AC coupling capacitors |
| OUT_D1+ to OUT_D4− (pins 9–16) | TMDS differential outputs | HDMI/DVI-compliant current-steering outputs; back-current-safe when unpowered |
| HPD_SINK (pin 21), HPD_SOURCE (pin 5) | Hot Plug Detect interface | Translates 0–5 V sink-side HPD to 0–3.3 V source-side; includes 200 kΩ pull-down on HPD_SINK |
| SCL_SOURCE/SDA_SOURCE (pins 7,6), SCL_SINK/SDA_SINK (pins 19,20) | DDC I²C bidirectional level shifter | Active buffering with rise-time acceleration on sink side; 5 V tolerant on source side |
| OE_N (pin 17), DDC_EN (pin 22) | Functional enable controls | OE_N disables TMDS lanes (high-Z); DDC_EN isolates DDC bus - both support independent power management |
| REXT (pin 4), EQ0/EQ1 (pins 8,2) | Analog configuration ports | REXT sets output current accuracy via 12.4 kΩ resistor; EQ0/EQ1 select 0/2/4/6 dB equalization |
Key Features
| Feature | Design Value |
|---|---|
| Transparent TMDS level shifting | No retiming, no firmware, no latency - preserves native signal integrity and jitter budget across 4 lanes |
| Programmable equalization | Four settings (0/2/4/6 dB) via EQ0/EQ1 straps - compensates channel loss for long or lossy interconnects |
| Back-current-safe sink interfaces | Zero backdrive current on all sink-side TMDS, DDC, and HPD pins - enables safe hot-plug with powered monitor and unpowered source |
| Active DDC rise-time acceleration | Enables reliable I²C operation up to 1400 pF bus capacitance on sink side - exceeds HDMI DDC spec requirements |
| Ultra-low-power standby modes | 25 µA standby (HPD_SINK = LOW); 10 µA ultra-low-power (OE_N = HIGH & DDC_EN = LOW) - ideal for energy-sensitive systems |
Applications
| PC Graphics Card Interface | Docking Station Video Bridge |
|---|---|
Use Scenario: Converting multi-mode DisplayPort output from GPU to HDMI/DVI connector on add-in card. IC Role / Device Role / Timing Role: Transparent TMDS level shifter with integrated DDC/HPD translation - bridges electrical domain gap without altering signal timing. Use Value: Enables single GPU PHY to drive multiple display standards using minimal I/O pins and zero software overhead. | Use Scenario: Supporting HDMI output from laptop via USB-C/Thunderbolt docking station with legacy monitor compatibility. IC Role / Device Role / Timing Role: High-speed level shifter and DDC repeater - maintains HDMI link training and EDID communication across power domains. Use Value: Eliminates need for separate DDC buffers and HPD translators; reduces BOM count and layout complexity in space-constrained dock PCBs. |
| Embedded Display Controller | AV Receiver Input Switching |
Use Scenario: Integrating HDMI input capability into industrial SoC-based display controller with DP-native output drivers. IC Role / Device Role / Timing Role: Signal-domain translator between low-swing DP-style PHY and HDMI sink - handles HPD detection and DDC handshaking autonomously. Use Value: Allows reuse of existing DP PHY IP while achieving full HDMI compliance, including deep color and 3D video transport. | Use Scenario: Adding HDMI passthrough or format conversion in home theater AV receivers with mixed-source inputs. IC Role / Device Role / Timing Role: Bidirectional DDC buffer and TMDS level shifter - isolates source-side I²C bus capacitance from sink-side, preventing timing violations during EDID reads. Use Value: Ensures reliable EDID exchange across multiple HDMI sources and sinks, even with long cable runs and legacy displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI/DVI level shifting applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPD12S016 | Single-chip solution integrating HDMI level shifter, ESD protection, and DDC buffer; lacks programmable equalization and has fixed 50 Ω input termination | Targeted at cost-sensitive consumer TVs and monitors; not optimized for high-loss PCB traces or multi-standard reconfigurable sources | Prefer PTN3366BSMP when equalization control, ultra-low standby current, or DP-to-HDMI flexibility is required |
| Diodes AP2142 | Discrete dual-channel HDMI level shifter; no integrated DDC/HPD functions - requires external I²C buffers and level translators | Used in simpler, lower-pin-count designs where full DDC/HPD integration is unnecessary or handled separately | Choose PTN3366BSMP when system-level integration, reduced component count, and guaranteed HDMI v1.4b compliance are priorities |
Compared with TPD12S016 and AP2142, PTN3366BSMP delivers superior signal integrity through configurable equalization, lower power in standby modes, and complete DDC/HPD subsystem integration - reducing design risk and validation effort for multi-standard display interfaces.
Availability
PTN3366BSMP is available at Aetrix Electronics and suitable for PC motherboard/graphics card, docking station, and embedded display controller applications requiring stable component supply, automotive-grade temperature range (−40 °C to +105 °C), and long-term lifecycle continuity.
Supply support for PTN3366BSMP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.
The PTN3366BSMP belongs to NXP's display interface product line, designed specifically to enable flexible, low-power, multi-standard video connectivity between reconfigurable display sources (e.g., DP PHYs) and HDMI/DVI sinks - addressing the growing need for pin-efficient, software-transparent bridge ICs in compact form factors.
FAQ
What is the maximum supported data rate per lane for PTN3366BSMP?
The PTN3366BSMP supports up to 3 Gbit/s per lane, corresponding to a 300 MHz TMDS clock frequency. This enables transmission of 4K×2K resolution, 36-bit deep color, and 3D video formats as defined in HDMI v1.4b and DVI v1.0 specifications. The device maintains signal integrity at this rate using integrated equalization and precise output current control via the REXT pin.
Does PTN3366BSMP require external configuration or firmware to operate?
No, PTN3366BSMP operates in a fully transparent, hardware-only mode with no firmware, registers, or software configuration required. Its behavior is controlled solely by pin-strapped inputs (EQ0/EQ1 for equalization, OE_N and DDC_EN for enable/disable), and it performs no retiming or data latching. This makes PTN3366BSMP ideal for deterministic, low-latency display interfaces where signal timing must be preserved end-to-end.
How does PTN3366BSMP handle back-current safety when the sink is powered but the source is not?
PTN3366BSMP provides back-current-safe design on all sink-side terminals - including TMDS outputs (OUT_Dx), DDC I/Os (SCL_SINK/SDA_SINK), and HPD_SINK. When unpowered, these pins present negligible leakage current (<10 µA OFF-state output current) and block reverse current flow from the sink's 5 V or 3.3 V termination network into the PTN3366BSMP's VDD rail or upstream source circuitry - ensuring safe hot-plug operation in real-world system configurations.
Can PTN3366BSMP be used with DisplayPort sources that output low-swing AC-coupled signals?
Yes, PTN3366BSMP is explicitly designed for use with DisplayPort sources. Its IN_Dx inputs comply with DisplayPort Standard v1.2a and PCI Express v1.1 electrical specifications - featuring self-biasing 50 Ω differential termination and support for low-swing AC-coupled signaling. The device translates these signals directly to HDMI/DVI-compliant TMDS outputs without requiring intermediate signal conditioning or retiming stages.
What is the function of the REXT pin on PTN3366BSMP, and what value resistor is recommended?
The REXT pin (pin 4) serves as an analog current sense port to set the output current reference for the TMDS differential outputs (OUT_Dx). For optimal output voltage swing accuracy across voltage and temperature, a 12.4 kΩ ±1 % resistor is recommended between REXT and GND. Using this precision resistor ensures VOL, differential swing, and rise/fall time remain within HDMI v1.4b specification limits - though the PTN3366BSMP remains functional with REXT tied directly to GND or VDD at reduced accuracy.
PTN3366BSMP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Shifter
- Applications:
- DisplayPort to HDMI, DVI Adapters
- Standards:
- DVI v1.0, HDMI v1.4b
- Control Interface:
- I2C
- Voltage - Supply:
- 3.0V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-HVQFN (5x5)
PTN3366BSMP FAQ
1.How can I place an order for PTN3366BSMP through Aetrix?
Please submit a Request for Quotation (RFQ) for PTN3366BSMP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PTN3366BSMP reliable?
The price and inventory of PTN3366BSMP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTN3366BSMP is usually 5 days.
3.What payment methods are accepted for PTN3366BSMP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTN3366BSMP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTN3366BSMP?
PTN3366BSMP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTN3366BSMP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PTN3366BSMP?
For technical support, including PTN3366BSMP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTN3366BSMP requirements.
6.How does Aetrix verify that PTN3366BSMP is sourced from the original manufacturer or authorized distributors?
All PTN3366BSMP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PTN3366BSMP meets industry standards.
7.What is the process for return or replacement of PTN3366BSMP?
All PTN3366BSMP units undergo pre-shipment inspection (PSI). If there is an issue with PTN3366BSMP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PTN3366BSMP part is unused and in its original packaging.
Return procedure for PTN3366BSMP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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